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build: add "coverage" profile to cargo #3606

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Oct 7, 2022
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build: add "coverage" profile to cargo #3606

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13 changes: 13 additions & 0 deletions Cargo.toml
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Expand Up @@ -32,3 +32,16 @@ members = [
]

exclude = ["implementations/rust/ockam/ockam_examples/example_projects"]

# Coverage profile for generating code coverage with grcov.
#
# See https://github.com/rust-lang/rust/issues/78011.
#
[profile.coverage]
panic = "abort"
opt-level = 0
overflow-checks = false
incremental = false
codegen-units = 1
inherits = "test"

2 changes: 1 addition & 1 deletion implementations/rust/DEVELOP.md
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Expand Up @@ -83,7 +83,7 @@ Get a code coverage report:
```
cargo +nightly install grcov

env CARGO_INCREMENTAL=0 RUSTFLAGS="-Zprofile -Ccodegen-units=1 -Copt-level=0 -Clink-dead-code -Coverflow-checks=off -Zpanic_abort_tests -Cpanic=abort --cfg tokio_unstable" RUSTDOCFLAGS="-Cpanic=abort" cargo +nightly test
env CARGO_INCREMENTAL=0 RUSTFLAGS="-Zprofile -Clink-dead-code --cfg tokio_unstable" cargo +nightly test --profile coverage

grcov --llvm . -s . --binary-path ./target/debug/ -t html --branch --ignore-not-existing -o ./target/debug/coverage/

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